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Application filed by Jakob Strebel JoseffiledCriticalJakob Strebel Josef
Publication of CH76104ApublicationCriticalpatent/CH76104A/de
CH76104A1917-05-281917-05-28Einrichtung an Schreibmaschinen, um dem Schreibenden sichtbar zu machen, wenn der Papierbogen vollbeschrieben ist
CH76104A
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